It is the policy of this state that all persons selected for jury service be selected at random from a fair cross section of the population of the area served by the court, and that all qualified citizens have the opportunity in accordance with this chapter to be considered for jury service in this state and an obligation to serve as jurors when summoned for that purpose. A citizen shall not be excluded from jury service in this state on account of race, color, religion, sex, national origin, or economic status.